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The Browser Console

The Web Console was the first new developer tool added to Firefox 4, and the team has continued improving it in each release since. With Firefox 24 entering beta, we thought it would be a good time to highlight the features available in the Web Console and introduce its new cousin, the Browser Console.

The Browser Console replaces the venerable Error Console. To open it, hit the familiar Ctrl+Shift+J key-binding ( Command+Shift+J on OS X ):

• Toggle the different message types: Net, CSS, JS, Security and Logging.
• Select the level of severity of log messages you want to see for each type from the dropdowns.

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Writing an Actor

A Simple Hello World

Here's a simple Hello World actor. It is a global actor (not associated with a given browser tab).

let protocol = require("devtools/server/protocol");

let {method, Arg, Option, RetVal} = protocol;

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/**
 * Run this scratchpad in a chrome context to enable the
 * remote debugging server manually.
 */

Components.utils.import("resource://gre/modules/devtools/dbg-server.jsm");
if (!DebuggerServer.initialized) {
  DebuggerServer.init();
  DebuggerServer.addBrowserActors();
}